Floor form



C. BRYNOLDT FLOOR FORM 8 Sh 11s-Sheet 2 8 Sheets-Sheet 3 C. BRYNOLDTFLOOR FORM Filed April 13. 1920 MMR/vins C. BRYNOLDT FLOOR FORM FiledApril 15. 192 8 SheetS Shee1-, 4

By i j Alm/Mfrs ug. 24 H926.

C. BRYNGLDT FLOOR FORM 8 Sheets-Sheet 5 Filed April 13. 1920 [Il M ilnllc. BRYNOLDT Aug.z 24

FLOOR FORM Filed April l5, 1920 8 Sheets-Sheet 6 Aug. v24 1926.1,596,868

c. BRYNOLDT FLOOR FORM Filed April l5. 1920 8 Sheets-Sheet 7 Mw iwi/ c.BRYNOLDT Aug., 24

FLOOR FORM 8 Sheets-Sheet 8 Filed April 15. 1920 Patented Aug. 24, 1926.

UNITED STATES PATENT OFFICE.

CHRISTIAN BnYNOLDn/or PITTSBURGH, PENNSYLVANIA, Ass'IeNon To BLAw-xNoxOOMrANY, A CORPORATION or NEW JERSEY.

` FLOOR FOB/M.

Applicants inea April 13, 1920. serial No. 373,529.

vision of an improved form for column supported fioors.

My inventionvalso contemplates the provision of improved means forsupporting the form whereby the same may be readily and quickly takendown'without interference V with adjacent units;

The genera'lfobject of my n'nvention is to eii'ect an economy in the4permanent plant investment and in the time and labor ordinarilyrequired. in this class of work. l.

rThe foregoing, together with such other .objects as may hereinafterappear, I obtain by means of a construction which I have i1- lustratedin preferred form in thev accompanying drawings, wherein Fig. 1 isa-`vertical section taken through form apparatus embodying my inventionon the line 1 -1 of Fig. 2; Fig. 2 is a top plan of the apparatusthereof 'broken awa to more clearly illustrate the structure; Flg. 3 isan enlarged side elevation of that portion of Fig. '2 between the arrowsmarked 3-3 Fig. 4 is a section taken on the line 4-4 of Figs. 1 and 2,,on an enlar ed scale; Fig. 5 is a fragmentary section illustrating aportion of the floor form in collapsed position ready to be telescopedthrough the work and set up at anew point, and taken on the line 5-5'ofFig. 2; Fig. 6 isan end elevation` of the centre panel andthe sideorwing panels in collapsed position; Fig. 7 is a side elevation of an endpanel and one of its sides or wings in collapsed position, together withthe traveler therefor; Fig'. 8 is a view similar to Fig. 7 showing anend panel and its plinth and capital or column head mold section incollapsed position; Fig. 9 is an enlarged side elevation of the travelerfor the centre panel, illustrating the manner in which the panel issupported thereon; Fig. 10 is a fragmentary'plan view of a detail of thetraveler shown in' Fig. 9; Fig. 11 is .n enlar ed section taken on line1,1-11 of Fig. 2; ig. 12 is` an enlarged section taken on line 12-12 ofFig. .2; Fig. 13 is an enlarged section taken online'13-13 of Fig. 2;

Fig. 14: is a fragmentary side elevation,

drawn on an enlarged scale, of that portion of the apparatus between thearrows marked 14-14 of Fig. 2; Fig. 15 is an enlarged seci tion taken ontheline 15--15 of Fi 2;.Fig. 16 is a view illustrating a detail of t emeans, carried lby the traveler for collapsing portions of the form;Fig. 17 is a side elevation of a portion of the column form, drawn on anenlarged scale; and Fig.l 18 is an enlarged detail of the jointsutilized for hing.-y

ing the swinging-portions of the form to the panels;

Referring now to Fig. 1 the shores, which are preferably set up in rowsforming bays, and on which the forms are to be su ported, are indicatedat 7. 8 are the shan for the columns A. Depending v\.upon the length ofthe form, considered as a unit,`

the form comprises one or more centre panels, B; end panels, C; wing orside panels, D. carried at either end of the centre panel; side or wingpanels E, carried by the end panel, C; and the combined plinth andcapital or column head sections F and G, re-

molds spectively carried by the centre panels and the end panels. Eachend panel, therefore, has two wing panels, and a combined plinth andcapital mold section, while the centre panelsl have two wings and acombined 'plinth and capital section at each end, so

that when the parts are assembled and positioned as shown in Figs. 1 and2 a practically complete form for a section of the floor results. Thepreferred construction of .the various parts willnow be described. l

The centre panel B` comprises a frame composed of a pair of longitudinalchannels 9 and a plurality of transverse channels 10 secured to thechannels '9 in any preferred manner. Carried on the channels 10 are plurality of nailing strips 11 to which the lagging 12 is nailed, see Figs.1, 2, 3 and 5, for example.

The shores 7 on either side of the columns are provided near the topvwith brackets 13, detachably secured to the shores one on each side.Pairs of channels 14 and 15 are placed on the brackets 13 in the mannerin' verse channels 18, secured to the lowerfaces of the channels 16 and17 and the angles 19., secured to the bottoms of the channels 18,

and spaced apart to receive the eye of a ratchet jack 20 (see Figs. 2, 3and 13). This frame carries the nailing strips 21 to which the lagging22 is nailed. Each of the channels 16 and 17 is secured by a pivotalconnection 23 to a channel 9 of the central panel frame, the details ofthis connection being illustrated in Figs. 13 and 18. The channels 17 ofthe Wings D project well bevond the free end of the Wing frame.

The Wings E are constructed in substantially the same Ina-nner as theWings D, practically the only difference being that the correspondingchannel 17 is offset with respect to the channel 17 on the adjacent wingD-so that the two channels may lap past each other as indicated in Figs.2, 3 and 14. The frames of the w'ings E -are pivoted to channel 9A ofthe frame of the end panel C. lVhen the wings D and E are in theposition shown in Fig. 3 the inner portion of their frames, that is tosay, those portions nearest to the respective column, are supportedagainst depression under load by the brackets 24 which are carried bythe channel 14 in position to support the free ends of the channel 16 ofthe wing frames (see Figs. 4 and 15) The outer ends of the wing framesare supported against depression under load by detachably boltingtogether the overlapping ends of the channels 17, as diagramaticallyindicated at 25 in Figs.3 and 14.

The end Ipanels C are composed of a frame-work of structural memberssuch as the channel 9LL and the .channels 26 and 29, the latter beingsecured to the channels 26; the nailing strips 27 carried on thechannels 26; and the lagging 28. The end frames are supported in theposition shown in Figs. 1 and 3 on the ends of the channels 14 and 15and by the channel 30 which is carried on the detachable brackets 31 onthe end row of shores 7.

The frames for the combined plinth and capital sections G and F consistof the channels 32, the pairs of spaced angles 33, and the channels 40.The Stringer 34 is carried on the angles 33 and the nailing strips 35arey following manner: Secured to the top of each halt` capital mold isa semicircularchannel 38 which rests upon and is secured to one of thechannels 32. The ends of the channel 38 are supported'by means of vthebrackets 39 secured to the channel members 40 constituting a part of thefra-me work of the members G and F. These brackets 39 also serve as asupport for nailing strips for the lagging 36.

The `frames of the members G and F are prevented from sagging under loadby virtue of the fact that the channels 40 are provided with clips 41which rest upon the channels 15. See Figs. 2, 4 and 12.

It will be understood that the frames for the members D and E, and G.and F are hinged or pivotally connected to the frame of the adjacentpanel member by the pivotal connections 23. It will also be understood.that a pair of jacks 20 is provided for each plinth member, the eyes ofwhich are secured to the angles 33.

The side walls of the plinths are formed by the members 42 which aresecured to the channels 16 of the wings E and D, and by the fillermembers 43 which are secured in position by means of the brackets .44connected to the channels 9 or 9, as lthe case may be. The gap betweenthe Wings E and D and the sections G and F is closed by stringers 45which rest upon the tops ot' the shores 7 (see Figs. 2, 4 and 15). Atthe ends of the units I also provide stringers 46 (see Fig. 3 at theleft) on which are supported the strips 47. Such strips acting as afiller member lill the gap between the end of adjacent units or betweenan end ot' the unit and some other portion of the structure.

With the parts positioned as described it will be clear that they willbe securely supported. The means whereby the forms may be collapsed andlowered for telescoping through the work or through other forms inplace, will now be described.

For a center panel, a traveler H is provided which rides on rails 50extending logitudinally of the bay, and for an end'panel a traveler I isprovided. 0n reference to Figs. 1, 5 and -9, it will be seen that thetraveler H comprises a suitable frame-work built up of structuralmembers having four guide posts 51 Iwhich slidably receive the posts 52which carry a platform composed of structural members. lVhen theplatform is elevated by raising the posts 52 by mechanism which willhereinafter be described, the platform is brought up against thechannels 10. The traveler I is of the same general construction, but isprovided with a pair only of guide posts 51 and elevating posts 52 andwhen the latter are elevated the platform 'is brought in to engagementwith the channels 26 of the end panel trame.

Assuming now that the travelers are inV the position indicated in Fig.1, to collapse the form, the bolts25 are removed freeing thev members17; the brackets 24 are `re'- y moved, which lfrees they Wing members Eand D for collapse by their respective jacks; the brackets 44 areremoved; and the chanare slidably Lacasse dition I have provided thefollowing mechanism: Each jack 20 has an eye secured to an angle runninglongitudinally of the traveler platform, there being a pair of suchangles 55 one for the set of jacks on one side of the traveler and theother for the set of jacks on the other sidel of the traveler. At eachend, the angles 55 are provided with an angle clip 57 to which issecured a verticalplate 56. The angles 55 are supported on the crosschannels 58 of the traveler platform and the )angle clips 57 andtheplates 56 are so disposed as to lie on the outside of the channels 58.At the bottom each plate 56 is provided Ywith an angle clip 59 adaptedto engage the 'bottom of the Achannels 58.' By this construction theangles 55 yoked to the channels 58. At the end of the angles 55, Iprovide jacks 53 secured to the angles 55 by means of'the angle clips59, the other end ofthe jacks belng secured to angleclips,A 60 whicharein turn secured to the channels 58. The jacks 53, therefore, operateto shift the angles 55 toward and away from the centre of the travelerplatform. When the arts are in the position shown in Figs. 1 an 3 thejacks 53 are shortened, while the jacks 2O are fully lengthened. Incollapsing, the jacks 20 are first fully shortened, which partly bringsthe swinging members downward, after which the jacks 53 are lengthenedwhich shifts the angle 55 to thecentre stop 61, as shown, for example,in Fig. 6. This brings the swinging parts in full down position.

The jack arrangement for the end panelis fundamentally the same, theonly differences being those that are incident to the fact that thetraveler I has but one set of jacks for its wings and plinth sections.

In Figs. 7 and 8 the end panel wing section and theV plinth section areshown in `co1- lapsed position.

When the swinging sections have been swung downwardl or collapsed, theplatform ofthe trave ers are lowered clearln the form and permitting itto be telescope and set up at a new pomt. The means for raising andlowering thetraveler latforms will now be described, attention ing d1-rected to Figs. 9 and 10.

Ratchet jacks having one end connected to the traveler frame and theother end connected by suitable links 66 to beams 67,

are provided. The beams 67 are pivoted to'. the traveler frame muchcloser toward one Among theadvantages incident to the construction arethe fact that the initial plant equipment and, therefore, the initialinvestf ment are greatly reduced because the form a paratus can be takendown after a relative y short time and set up for reuse etc., etc. Inthis connection, attention is directed to the fact that the members 45and 46 which are carried on the shores and which remain in position, aresuiicient to support the concrete until it is thoroughly set. Theapparatus is relatively easy to manipulate and effects a great saving intime labor and materials over the ordina methods followed in this art.It will also e seenthatr the form, considered as a unit, may be takendown without interference with an adjacent unit and that'i'f desiredcertain portions of a unit t, may be taken down without disturbing theremaining portions. A

It 4will also be seen that in setting u the device the travelers may beused to shi the parts and supportthem into the pro er posi- I tion untilchannels 14 and 15 and t e vari-- osts 52 4by suitable ous bracketshereinbefore referred to areset i upl and secured, afterl which thetraveler apparatus may, if desired be detached and used elsewhere eithertol taire down or set up 4for other units. Itwill be Vap arent that theapparatus has great utility w ere operations are to be carried out on alarge scale. What I claim 1s':-

1. A mold formapparatus for concrete` down the` collapsible -section andoors and the like comprisin in combination false work, a collapsible mod form' section, means detachably supporting the section from the falsework, mold means carried by the false work adapted to be left in posi-ltion until the concrete sets, and' means for taking down the collapsiblesection, said last means including said mold section. v

3. A mold form apparatus for columnl means for collapsing the supportedfloors and the like comprising the j combination. of a panel moldsection, a col-- umn mold section connected therewithV for collapsingmovement, means for releasiblyposition, and means for collapsing thecol-` a supporting the section in operative position,

and a take down mechanism for taking down the sections as a unit.

5. A mold form apparatus for column supported floors and the likecomprising the combination of a panel mold seetion,'a column moldsection connected therewith for collapsing movement, and means forreleasably supporting the sections in operative position to permit ofcollapse and taking down as a unit.

6. A mold form apparatus for column supported floors and the likecomprising the combination of a removable column mold, a capital moldsection and a panel mold seetion with which the capital mold section isconnected for collapse whereby the two may be taken down as a unit.

7. A mold form apparatus for column supported floors and the likecomprising the combination of a removable column mold, a combinedcapital and plinth mold section and a panel mold section with which thecapital mold section is connected for collapse whereby the said sectionsmay be taken down as aunit.

8. A mold form apparatus for column supported floors and the likecomprising the combination of a removable column mold, a plinth moldsection, and a panel mold section With which the capital mold section isconnected for collapse whereby the two may be taken down as a unit.

9. Mold form apparatus of the character described comprising floor moldsections articulated together, means includin falsework uprights fornormally7 supportlng'said sections substantially horizontalA rele-asableto permit them to be folded together between the falsework uprights, andmeans for thus collapsing the sections and lowering them between said urights.

CHRISTIAN BRYNOLDT.-

